US2853159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dashpot with porous metal valve
Assignee: Houdaille Industries Inc
•
Filing: 1954-12-14
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Granted: 1958-09-23
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Expires: 1974-12-14
Abstract
No abstract record available.
Inventors
- 👤 Jr William A Kuhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:51
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/10; F16F9/14; F16F9/16; F16F9/18; F16F9/20; F16F9/32; F16F9/34; F16F9/3415; F16L; F16L55/00; F16L55/24; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7847
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2419651A
Cited
US2635715A
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US2679729A
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US2714429A
Cited
US2689916A
Cited
US2676613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |